SKF 21139A Automatic Transmission Seal - Rear

Reliable Automatic Transmission Seal for Dodge Ram Trucks

The SKF 21139A automatic transmission seal is engineered to provide precise sealing performance for Dodge Ram 1500, Ram 2500, and Ram 3500 models. Designed with durable polyacrylate sealing surfaces, this seal ensures effective protection against fluid leaks and contamination.

• Width: 1.515 inches for optimal fit and sealing
• Outside Diameter: 2.979 inches to match transmission housing specifications
• Shaft Diameter: 2.160 inches for accurate shaft sealing
• Sealing Surface Type: Polyacrylate material for enhanced durability and resistance
• Compatible with Dodge Ram 1500, 2500, and 3500 automatic transmissions

Technical Details of SKF 21139A Transmission Seal

The SKF 21139A automatic transmission seal is designed to maintain the integrity of your vehicle’s transmission system by preventing fluid leaks and contamination. Its polyacrylate sealing surface offers resistance to heat and wear, which is critical for the demanding conditions inside automatic transmissions. The seal’s dimensions—1.515 inches in width, 2.979 inches outside diameter, and 2.160 inches shaft diameter—are engineered to fit precisely within the transmission assembly of Dodge Ram 1500, Ram 2500, and Ram 3500 models, ensuring a secure and reliable seal.

Applications and Problem Solving

• Prevents automatic transmission fluid leaks that can cause shifting issues
• Protects transmission components from dirt and debris contamination
• Reduces risk of premature transmission wear due to fluid loss
• Helps maintain proper hydraulic pressure within the transmission system
• Addresses common seal failure points in Dodge Ram 1500, 2500, and 3500 transmissions

Installation Notes and Tips

When installing the SKF 21139A transmission seal, ensure the shaft and housing surfaces are clean and free of debris. Lubricate the sealing surface lightly with transmission fluid to facilitate installation and prevent damage. Use appropriate tools to press the seal evenly into place without distortion. Verify the seal dimensions—width, outside diameter, and shaft diameter—to confirm compatibility with your Dodge Ram model’s transmission.

Quality Assurance and Warranty

SKF manufactures the 21139A transmission seal to meet strict quality standards, ensuring reliable performance and durability. The polyacrylate sealing surface is tested for resistance to heat and wear typical in automatic transmission environments. This part is backed by SKF’s quality assurance protocols, providing confidence in its fitment and function for Dodge Ram 1500, Ram 2500, and Ram 3500 vehicles.